Finding the Third Proportional to 12,126,766,705.50 and 26,388,906,709.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,126,766,705.50 : 26,388,906,709.50 = 26,388,906,709.50 : x
2. Step 2: Convert to fraction form
   12,126,766,705.50/26,388,906,709.50 = 26,388,906,709.50/x
3. Step 3: Cross multiply
   12,126,766,705.50x = 26,388,906,709.50 × 26,388,906,709.50
4. Step 4: Simplify right side
   12,126,766,705.50x = 696,374,397,322,694,098,944
5. Step 5: Solve for x
   x = 696,374,397,322,694,098,944/12,126,766,705.50
6. Step 6: Final answer
   x = 57,424,572,784.67